Touchscreen issue with tslib1.4, please kindly help this.

Simon.Chen

Dear all,

I have faced an issue with the tslib1.4 with qt4.8.6.

i have compile and install tslib1.4, and copy the tslib/lib to my embedded board. i run ts_calibrate and ts_test. They all works well.
i compile qt4.8.6 with -qt-mouse-tslib, and copy the libs to the embedded board. and set all necessary environment variables.
run the demo app calculator, from ./example/widget/calculator. the calculator show up, but not response when touch the screen.
i use the "dexdump /dev/input/touchscreen0", it had outcomes.
when i set
export QWS_MOUSE_PROTO="MouseMan:/dev/input/mouse0"
it had response when i touch the screen, but the X/Y coordinate seems not correct. because the cursor moved not exactly where i touched.
but when i set :
export QWS_MOUSE_PROTO="Tslib:/dev/input/touchscreen0"
the touchscreen did not reponse.
cat both /dev/input/touchscreen and /dev/input/mouse0, they all have outcomes when i touch the screen. but there is not mouse exist,

could any one help me on this?
Thanks.

SGaist

Hi and welcome to devnet,

Did you also set all the Tslib environment variables before running your application ?

mkrr

I solved my problem on QT 4.8 using this:
export QWS_MOUSE_PROTO="linuxinput:/dev/input/touchscreen0"

I used "linuxinput" instead of "tslib".

If you execute "ts_test", the touch works?